V2EX acetyltransferase

Acetyltransferase

释义 Definition

乙酰基转移酶:一类酶,催化乙酰基(COCH)从供体分子(常见为乙酰辅酶A,acetylCoA)转移到受体分子(如蛋白质、糖类或小分子)上。常见作用包括蛋白质乙酰化(如组蛋白乙酰化)以及多种代谢途径中的乙酰基转移。(该词在不同生物与不同底物情境下也可指不同家族的乙酰转移酶。)

发音 Pronunciation

/sitltrnsfres/

例句 Examples

Acetyltransferase adds an acetyl group to a protein.
乙酰基转移酶会把一个乙酰基加到蛋白质上。

In many cells, histone acetyltransferase activity can change gene expression by loosening DNA packaging.
在许多细胞中,组蛋白乙酰基转移酶的活性可通过使DNA包装更松散来改变基因表达。

词源 Etymology

由三部分构成:acetyl-(乙酰基) + transfer(转移) + -ase(酶的常见后缀)。整体字面意思就是“转移乙酰基的酶”。其中 acetyl 源自 acetic(乙酸)相关的化学命名体系,*-ase* 是现代生物化学对酶类命名的标准后缀。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Bruce Alberts et al., Molecular Biology of the Cell(《细胞的分子生物学》):在表观遗传学与染色质调控章节中讨论histone acetyltransferase(组蛋白乙酰基转移酶)
  • James D. Watson et al., Molecular Biology of the Gene(《基因的分子生物学》):在基因表达调控部分涉及组蛋白修饰与相关乙酰转移酶。
  • Lewin, Genes(《基因》系列教材):常在染色质结构/转录调控内容中出现乙酰转移酶相关表述。
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